What helps regulate the movement of carbon dioxide into and out of a leaf?
A) guard cells
B) root hairs
C) sieve plates
D) xylem
Answer: A
Biology & Microbiology
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The ploidy of cells characteristic of an aneuploid is best represented by which of the following?
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The PARA-TECT Cryptosporidium/Giardia test kit uses which of the following formats for detection?
a. Direct fluorescent antibody (DFA) b. Indirect fluorescent antibody (IFA) c. Enzyme immunoassay (EIA) d. Probe
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The relationship between the yucca plant and the
yucca moth that pollinates it is a. camouflage. b. commensalism. c. competitive exclusion. d. mutualism. e. all of these.
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What is the target of the first CRISPR-cas gene editing in humans?
A) CAR T cells B) PD-1 C) FUH D) COL7A1
Biology & Microbiology